Siemens
Siemens 6ES7921-3AK20-0AA0 Front Connector Module for CPU 312C
Siemens 6ES7921-3AK20-0AA0 Front Connector Module for CPU 312C.
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12-Mo Warranty
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12-month warranty
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Same-day dispatch
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Veteran-owned
CAGE: 9NK75
Flat ribbon cable connection
Screw terminals for power
Designed for CPU 312C
Part of SIMATIC S7-300 system
Product description
The Siemens 6ES7921-3AK20-0AA0 is a front connector module designed for the compact CPU 312C. It facilitates connection via a flat ribbon cable and provides power supply through screw terminals.
This module is integral to the Siemens SIMATIC S7-300 automation system, commonly used in industrial control applications for machinery, process automation, and building management.
As a veteran-owned surplus parts distributor, Stanlo Automation offers reliable access to hard-to-find components like the 6ES7921-3AK20-0AA0, ensuring your industrial operations remain online.
Technical specifications
| Connection Type | Flat ribbon cable |
| Power Supply | Screw terminals |
| Compatible CPU | 312C |
Common applications
Industrial control
Machine automation
Process automation
Building management systems
Compatible systems
Siemens CPU 312C
Also known as
Siemens 312C Front Connector
6ES79213AK200AA0
Replaces / compatible with
This module is specific to the Siemens CPU 312C and is not a direct replacement for other series.
Technical note
Expert tip
Ensure proper termination of the flat ribbon cable to prevent connection issues with the CPU 312C.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What type of cable connection does the Siemens 6ES7921-3AK20-0AA0 use?
The Siemens 6ES7921-3AK20-0AA0 utilizes a flat ribbon cable for its primary connection. Power is supplied via convenient screw terminals.